Drier.



N 665,388. I U D. BENNER. Patented Jan |90 DRIER.

(Applicltion filed July 20, 1899 ({No Model.)

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. 'Patented Ian. I, I90l. L. D. BENNER.

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(Application filed July 20, 1898.)

2 Sheets-Sheet 2,

(No Model.)

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UNITED STATES PATENT OFFICE.

LORENZO D. BENNER, 0F PEORIA, ILLINOIS, ASSIGNOR TO LUOIUS G. FISHER, OFCHICAGO, ILLINOIS.

DRIER.

SPECIFICATION forming part of Letters Patent No. 665,388, dated January1, 1901.

Application filed July 20, 1899. serial No. 724,509. (No model.)

To all whom it may concern:

Be it known that I, LORENZO D. BENNEE, a citizen of the UnitedStates,residing at Peoria, in the county of Peoria and State ofIllinois, have invented certain new and useful Improvements in Driers;and I do hereby declare that the following is a full, clear, and exactdescription of the invention,which will enable others skilled in the artto which it appertains to make and use the same.

My invention relates to an improved construction in driers, and moreparticularly to that class of driers wherein it is purposed to receive apaper bag immediately after the end of the bag has been folded andpasted and carry the same on an endless belt around the peripheralsurface of a rotary drier.

The object which I have in view is the construction of a rotary drierthat shall be heated by electricity, it being purposed in theconstruction of the drier to arrange a series of heating-coils intransverse line to the circumferential surface of the drier at intervalsaround the same in a suitable compartment and wherein the same will becarried adjacent to the surface which it is purposed to heat,of suitablemeans forconducting the current to the coils and for regulating thequantity of electricity passing into said drier, and of detailshereinafter more fully described.

That my invention may be more fully understood, reference is had to theaccompanying drawings, forming a part of this application, in whichFigure 1 is a view in elevation .of the complete drier and componentparts, such as the endless belt purposed to carry the finished bagsaround the surface of the drier and the folding-rolls of thebag-machine, these latter devices shown in dotted lines. Fig. 2 is ageneral plan showing the drier and electrical connections. Fig. 3 is anenlarged sectional face elevation of the drier, showing the manner ofarranging the coils. Fig. 4 is a vertical cross-section through thedrier with a portion of the outer ends of the shaft cut away. Fig. 5 isan enlarged sectional detail of the heating-coil and the form or blockon which it is wound and the manner of securing the same therein. Fig. 6is an enlarged elevation, a

portion of the same being in section, showing the manner of conductingthe electricity to the coils.

In the drawings, Afiis the supporting-shaft,

on which the drier is carried, the shaft being journaled in thestandards a a, which may be suitably secured to the floor of a building.

The drier is shown formed substantially of the spiderB, rotating withthe shaft A, which is driven by the pulleywheel a from suitable motivepower. The spider has the circumferentiallypresented surface B and thecovering 13*, of asbestos.

C is a supplementalcovering or heatingsurface for the drier, somewhatlarger in diameter than the main supporting body A and is purposed to besupported thereon by the detachably-secured engaging plates 0 C carriedon opposite sides of the drier, and when fitted in place forms theheating compartment 7o D,within which the heatiug-coi ls are put-posedto be carried. These coils consist of the conductors E, formed of onepiece of conductingwire coiled in loose spiral form around the form orblock E, which may be of earthenware, porcelain, or other similarno1rintla1nmable material, which are arranged at intervals andtransversely carried in the compartment D and suitably supported thereinby means of the bolts 6 or other suitable sup- 8o porting means carriedthrough the plates 0 C the conductor E passing from one to the other ofthe forms E until the entire series have been traversed, the asbestoslining or covering B for the main frame or body A keeping the frame frombecoming overheated, at the same time forcing the heat out onto theheating-surface formed of the covering 0, which is made of suit-ablematerial.

The electric current is led to the heater 0 through suitable electricalconductors (represented by the wire f) leading from a suitable dynamo Fand from thence to a suitable support adjustably carried in the frame f,

which is supported on the standard ct, the

same being purposed to contact with the conductor E, carried through theperforations f f in the shaft and main frame, and from thence into thecompartment D and around the forms E, as described, and passing fromthence is carried down through the perforations f f in the frame andshaft upon the opposite side of the drier, where the conductor isadapted to contact with suitable adjustable electrical contact, whichleads back to the dynamo, the adjustable contact being suitablysupported in the frame f carried on the standard a.

A suitable regulating-switch G is placed at a suitable point in easyreach of the operator on the positive wire f for the purpose of varyingthe strength of the current passing to the drier.

The manner of supporting the drier and making the contacts such as areherein shown, wherein it is made possible to rotate the same withouttwisting or disconnecting the electrical conductors, enables me toprovide for a bag-machine or for other suitable purposes a drier whichis simple in construction, durable, and one which will radiate anyquantity of heat without raising the temperature to such an extent whenit becomes unbearable, as is the case with driers of this characterheated by steam.

In the construction of the drier I do not wish to limit myself to theexact means herein shown and described for conducting the current to thedrier nor to the means of regulating the same nor to the manner ofarranging the coils, as other well-known conducting means may beemployed and the coils may be circumferentially arranged and in manyother ways connected and carried to accomplish the same result. At thesame time I do not wish to confine the use of this machine to paper-bagmachines alone nor for drying paper bags in the manner I have described,as the same may be used with good results in any number of ways.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent of theUnited States, is

1. An electricz'iliy-heated rotatable drier, comprising asupporting-frame rotating with a suitable shaft, the outer casing C,supported by suitable rings or plates from the frame forming theconcentric chamber D, a series of studs or cores arranged in parallellines with the axial center of the shaft carried in the concentricchamber D, and an electrical conductor E, forming part of an electriccircuit Wound in helices around the cores, substantially in the mannerand for the purpose set forth.

2. A drier comprising a shaft and a frame rotating therewith, aconcentric chamber in said frame,'-a series of studs or cores supportedin said concentric chamber in lines par allel with the axial center ofthe shaft, an electric circuit passing through the shaft and frame andto the concentric chamber and wire helices wound on the cores and lyingin the circuit, substantially in the manner specified.

3. In an electrically-heated rotatable drier, the combination with theshaft A, the spider B, and the electrical conductor E, of the concentricchamber D, outer and side walls 0, O and 0 for said chamber, the studsor cores E, circumferentially arranged in said chamber whose axialcenters are parallel with the axial center of the shaft, a wire wound insuccessive helices around the cores and forming part of the electriccircuit, and an asbestos lining interposed between the cores and thespider, all arranged substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

LORENZO D. BENNER.

\Vitnesses:

W. H. OTIS, J. M. WELLS.

